Google
Câu hỏi: Quá trình khử nitrat xảy ra theo các bước nào sau đây?
A. $\text{NO}_{3}^{-}\to \text{NO}_{2}^{-}\to \text{NH}_{4}^{+}$.
B. ${{\text{N}}_{2}}\to \text{N}{{\text{H}}_{3}}\to \text{NH}_{4}^{+}$
C. $\text{NO}_{2}^{-}\to \text{NO}_{3}^{-}\to \text{NH}_{4}^{+}$.
D. $\text{N}{{\text{H}}_{3}}\to \text{NO}_{3}^{-}\to \text{NH}_{4}^{+}$
A. $\text{NO}_{3}^{-}\to \text{NO}_{2}^{-}\to \text{NH}_{4}^{+}$.
B. ${{\text{N}}_{2}}\to \text{N}{{\text{H}}_{3}}\to \text{NH}_{4}^{+}$
C. $\text{NO}_{2}^{-}\to \text{NO}_{3}^{-}\to \text{NH}_{4}^{+}$.
D. $\text{N}{{\text{H}}_{3}}\to \text{NO}_{3}^{-}\to \text{NH}_{4}^{+}$
Quá trình khử nitrat xảy ra theo các bước: $\text{NO}_{3}^{-}\to \text{NO}_{2}^{-}\to \text{NH}_{4}^{+}$
Đáp án A.